(11) Rory McIlroy the world number on in the official World Golf rankings is already three-time Major tournament winner with only the The Master yet to be added to his resume’ of Grand Slam victories . McIlroy joined Jack Nicklaus and Tiger Woods to have won the first their first three Grand Slam tournaments before turning the age of twenty-five.. The Irish player is seeking to improve on his triumphant 2014 season where he topped the PGA Tour and European Tour winners’ list in official prize money earnings . Getty Images Europe /. Henrik Thorstvaldt ..